import {
	asyncRoutes,
	constantRoutes,
} from '@/router'
import router from '../../router'
import store from '../index'
/**
 * 前端控制路由（权限筛选）
 * @param roles
 * @param route
 */
function hasPermission(roles, route) {
	if (route.meta && route.meta.roles) {
		return roles.some(role => route.meta.roles.includes(role))
	} else {
		return true
	}
}

/**
 * 前端控制路由（递归）
 * @param routes asyncRoutes
 * @param roles
 */
export function filterAsyncRoutes(routes, roles) {
	const res = []

	routes.forEach(route => {
		const tmp = { ...route }
		if (hasPermission(roles, tmp)) {
			if (tmp.children) {
				tmp.children = filterAsyncRoutes(tmp.children, roles)
			}
			res.push(tmp)
		}
	})

	return res
}

// 后端动态路由
function dataArrayToRoutes(data) {
	const res = []
	data.forEach(item => {
		const tmp = { ...item
		}
		if (tmp.component === 'layout') {
			tmp.component = () => import('@/layout')
		} else {
			let path = tmp.component
			tmp.component = (resolve) => require([`@/views/${path}`], resolve);
		}
		if (tmp.children) {
			tmp.children = dataArrayToRoutes(tmp.children)
		}
		res.push(tmp)
	})
	return res
}


const state = {
	routes: [],
	addRoutes: []
}

const mutations = {
	SET_ROUTES: (state, routes) => {
		state.addRoutes = routes
		state.routes = routes
	},
	SET_WEBROUTES: (state, routes) => {
		state.addRoutes = routes
		state.routes = constantRoutes.concat(routes)
	}
}

const actions = {
	receptionRoutes({
		commit
	}, roles) {
		return new Promise(resolve => {
			let accessedRoutes;
			if (roles.includes('admin')) {
				accessedRoutes = asyncRoutes || []
			} else {
				accessedRoutes = filterAsyncRoutes(asyncRoutes, roles)
			}
			commit('SET_WEBROUTES', accessedRoutes)
			store.state.user.menus =accessedRoutes
			resolve(accessedRoutes)
		})
	},
	allRoutes({ commit, state }, { menus}) {
		return new Promise(resolve => {
			let accessedRoutes;
			accessedRoutes = dataArrayToRoutes(menus);
			commit('SET_ROUTES', accessedRoutes)
			resolve(accessedRoutes)
		})
	}
}

export default {
	namespaced: true,
	state,
	mutations,
	actions
}
